Xanthie P.
Absolutely love these undies, the leopard print pair runs a touch small but everything else is...
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Lou & Lauren are wearing sizes Medium and XL.
This style runs a little small - recommend sizing up.
We want you to be as comfortable as possible on your period. Just follow the measurements above.
We recommend measuring yourself instead of relying on your usual size. Every style and pair varies, so please check this when ordering multiple styles.
If you sit between two sizes, we recommend sizing up.
Waist: Measure the narrowest part of your waist, below the ribcage and above your hip bone.
Hip: Measure the fullest part of your hip, keeping the tape measure straight.
Under our 30 Day Risk-Free Trial, first-time customers can try one garment from their first order risk-free.
You can read more about it here.
These returns rights are in addition to your usual Statutory Rights summarised in this policy. Please read this returns policy carefully as it contains important terms relating to your purchase.
Mix and match colours and sizes across the same style of period underwear.
Here is how to claim your free pairs:
🎁 For 1 FREE pair: just add 3 single pairs to your cart. The offer is applied automatically to one pair.
🎁 For 2 FREE pairs: just add 5 single pairs to your cart. The offer is applied automatically to two pairs.
Please note: this offer cannot be combined with other offers or discounts.
More than our word alone — see how women everywhere are wearing AuntFlo.
Xanthie P.
Absolutely love these undies, the leopard print pair runs a touch small but everything else is...
Rebecca C.
They feel beautiful, lovely quality and a wonderful fit. So comfy and really nice to wear...
Karina C.
I love these period undies! Super comfy and very absorbent. Would definitely recommend...
Sophie H.
So comfy that I have been wearing them as bedtime shorts even when I am not on my period
Amelia R.
Fit is spot on and they hold up all day. No leaks at all, I already ordered another pair...
Jasmine T.
The softest pair I own. Great coverage and the waistband never digs in during the day...
Chloe M.
Honestly a game changer on heavy days. Comfortable, discreet and easy to rinse out...
Priya S.
Ordered two sizes to be safe and the smaller one fit perfectly. Really happy with them...
Hannah L.
Wore them overnight and woke up with zero worries. Wish I had found these years ago...
Georgia W.
Lovely material and they wash really well. No shrinking after a few cycles at all...
Elise B.
Super soft and stretchy without feeling bulky. You genuinely forget you have them on...
Natalie K.
Bought a pack for my daughter and she wears nothing else now. Great for school days...
Mia D.
Delivery was quick and the quality is better than I expected for the price. Very pleased...
Isabelle F.
Perfect for light days and a brilliant back up on heavier ones. So much less waste too...
Ruby A.
Sizing guide was accurate for me. Comfy waistband and no riding up when I move around...
Tara N.
Second order already. They keep their shape wash after wash and still feel brand new...
Olivia J.
Really flattering cut and the fabric feels premium. Would happily buy the whole range...
Freya B.
Kept me dry through a long shift with no discomfort. Exactly what I was hoping for...
Lauren V.
Comfiest thing in my drawer right now. The grey pair is my favourite by a mile...
Emily G.
Great value in a multipack and they arrived neatly packaged. Nothing to fault here...
Holds up to 8-10 tampons
Leak-proof for peace of mind
Perfect for overnight protection
Better for you & the planet
Oh no, the wrong size ended up in your cart...
Because our products are classified as sanitary items, we are not able to swap them over for you. They will need to stay with you.
Sanitary products that come back to us cannot be resold, even when they are unused, unworn and unwashed. That is how we keep hygiene, health and safety standards strict, protecting both our customers and our warehouse team. After all, we are here for the planet and for your health!
That said, if this is your first order with us, we are happy to gift you one pair in the correct size when the first purchase was made in the wrong size.
Just send us an email at contact@auntfloundewear.com and we will sort it out with you!
It depends on your flow and on the absorbency level of the pair you picked — you can wear our period undies by themselves, or together with some extra protection.
Give yourself a little time to find what suits you best. Every period is a unique one!
Yes — our period undies are PFA free. PFAs simply have no place in the way our products are designed.
How often you swap your period underwear comes down to a few things: your flow, the absorbency of the pair, and how comfortable you feel. These pointers should help you tell when it is time:
Above all, listen to your body and change whenever comfort starts to slip — that is how you keep both confidence and hygiene.
Under our 30 Day Risk-Free Trial, first time customers may try one garment from their first order with no risk. If it does not perform the way you hoped, we will refund the cost of that one item (shipping costs excluded).
Full details are available here.
These return rights sit on top of the Statutory Rights you already have, as summarised in this policy. Please read it carefully — it holds important terms about your purchase.
Country - United States
Country - Canada
Country - UK
As soon as your order leaves us, you will get an email with a tracking number.
If 15 days go by and your order still has not arrived, please email us straight away and we will chase it up with the courier.
Women from all over Australia, UK & New Zealand are living comfortable and confident!
Really comfy.
I had never worn period underwear before, but the moment I saw the ads I had a feeling they'd be for me. Incredibly comfortable, and the heavy absorbency works perfectly overnight. I never feel unclean in them and washing is simple. I've already ordered a bundle in another style for daytime. Absolutely recommend them as a period essential, thank you!
I really love these. An Instagram ad caught my eye and I figured I'd give them a shot. The first pair wasn't quite the right fit, but support replied incredibly quickly and sent out a different size that fit perfectly. So comfortable to sleep in. Definitely ordering again.
I've made the switch from tampons to these period undies for good. The fit is spot on, they're comfortable, and I no longer worry about leaks or overflow while I'm at work. Brilliant.
They're so comfortable that I wear them as sleep shorts even when I'm not on my period.
The best period undies out there, and I've tried them all! Miles ahead of the cheap versions. I got the 5 variety pack and now these 2 boy legs with one free. Unbelievably comfortable, and the boy leg cut is my favourite with front to back coverage, which makes them great overnight. Probably the comfiest pairs I own. Coming from someone with endometriosis and adenomyosis and very heavy periods, they were also great after my endo surgery since they're not tight.
Very comfortable. I'm newly postpartum and my cycle has changed a lot, including a much heavier flow. The period underwear I had before couldn't keep up, but these have handled it and I haven't bled through once. My only gripe is the elastic rolling at the waistband.
Love them! Comfortable, great fit, they make me feel good and there's no odour. I took the advice to go one size up and it was the right call. Keen to try more from the brand, and the wash bag is a lovely touch!
Total game changer. 70 waist, 86 hips. The XS sits snug and looks like it digs into the waist, though it doesn't feel too tight. The S is a bit looser and marks less, but aside from the look there isn't much difference. The fabric isn't stretchy and it does ride up the thighs, yet neither thing affects comfort. Worn for more than about 8 hours on a heavy day it can leak at the sides, but never through to my clothes, and it washes right out. Feels dry, and so ...
Love everything about them, comfortable, very absorbent and they look good too.
Genuinely life changing. This is the first period in more than 10 years where I haven't leaked several times a day and had to scrub my sheets clean. I used to wear a pad and a tampon together and would still leak within 45 minutes. I wore the briefs through a full 7 hour shift on day one (if you know, you know) and never once felt like I had a wet nappy on. The absorbency is on another level. I couldn't recommend them more for a heavy flow, they make me not d...
Really absorbent. I got the briefs and they're very comfortable with no significant leaks day or night. I've just ordered more and I can't wait to use them next cycle. There's something so satisfying about skipping pads and tampons, free bleeding and still feeling protected.
I've tried a lot of period underwear and I have to say these are the most comfortable of the lot. So glad you made the Mercedes of period underwear. Many thanks, Penelope xx
Super comfortable, absorbent and they wash beautifully. Recommend them 100%. I'll be buying more.
The fit is fantastic and this is the first day one of a period where I've felt this comfortable xx
Brilliant, I love these.
I'm so pleased with these. I have stage 4 endo and very heavy periods, and these let me sleep through the night without worrying. They're comfortable too. 🙌🏻
I love these briefs, but do size up! I'm usually a 10-12 so I ordered a large. The waistband was very tight, so I got another set in XL to compare and they're perfect!!
These are incredible!!
As a mum I wanted something for my daughter that wouldn't put her health at risk (TSS) while still being hygienic, and that's how I found this brand. I picked up a few pairs on sale to test them myself and see how they performed. Honestly, I was doubtful ... but I was completely wrong. They were so comfortable, so easy to wash, and there was zero leakage, which had never happened before. I was genuinely stunned that the product did exactly what was promised...